出典:Wiktionary
出典:『Wiktionary』 (2026/01/20 18:40 UTC 版)
Said by Roman writers to be of Gaulish origin, from Proto-Celtic *lougā. The Celtic origin is uncertain, since the diphthong -eu- is secondary and the word lacks clear Insular Celtic cognates. There is a possible connection with Proto-Brythonic *llex (“stone”).
Simon argues that the Celtic is a borrowing from Germanic, based on reconstructed Proto-West Germanic *leuwa and Gothic *𐌻𐌹𐌲𐌲𐍅𐌰 (*liggwa); however, these forms are unattested, purely conjectural, and are themselves not given any further etymological origin, which weakens the argument considerably.
leuga f (genitive leugae); first declension
First-declension noun.
| singular | plural | |
|---|---|---|
| nominative | leuga | leugae |
| genitive | leugae | leugārum |
| dative | leugae | leugīs |
| accusative | leugam | leugās |
| ablative | leugā | leugīs |
| vocative | leuga | leugae |
“leuca et leuga”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.